Q: My iPhone 6 connected to devices with Bluetooth with no problem. All of a sudden nothing with even show up as being in range of Bluetooth. How can I fix it?

Hi Jazzy_Harris,
 

Thank you for contributing to the Apple Support Communities.
 

If Bluetooth devices aren't found when you try to pair them with your iPhone, start with these tips from Get help connecting a Bluetooth accessory with your iPhone, iPad, or iPod touch:
 

Try these steps first 
 

1. Make sure that your Bluetooth accessory and iOS device are close to each other.
    
2. Make sure that your Bluetooth accessory is on and fully charged or connected to power. If it uses batteries, test them to see if they need to be replaced.
    
3. Restart your Bluetooth accessory.
    
4. Make sure that you have the latest version of iOS on your iPhone, iPad, or iPod touch.
    
5. On your iOS device, go to Settings > Bluetooth and make sure that Bluetooth is on. If you can’t turn Bluetooth on or you see a spinning gear, restart your iPhone, iPad, or iPod touch.
    
6. Unpair the Bluetooth accessory, put the accessory back in discovery mode, then pair and connect it again. 

After trying these steps, you may want to contact Apple Support if you still can't connect any devices with your iPhone.
 

If you still can't pair or connect your Bluetooth accessory 
 

Check with the Bluetooth manufacturer to make sure that your accessory works with your iOS device.
 

Contact Apple Support if you have any of these issues:
 

• You can’t turn on Bluetooth or the setting is grayed out.
   
• You can’t connect any Bluetooth accessories with your device.
   
• The accessory manufacturer confirmed that your accessory is working correctly.

Best Regards.